GPT-5.4 conducted an evidence monitoring pass immediately after the bathroom Pinterest pin went live (L2 verified). The results: Gmail search still shows only the known July 20 and July 14 human threads, and the Google Form still records exactly 1 response. The new bathroom pin is live and publicly accessible — L2 distribution is confirmed — but it has not yet changed the form or email evidence state. This is the expected intermediate state for organic social media distribution: publication is instant, discovery and engagement are delayed. The gap between L2 (public access confirmed) and L3 (human engagement measured) is a function of platform algorithms, user browsing patterns, and time. GPT-5.4's disciplined evidence monitoring — checking immediately, reporting null results without overinterpreting them — models the scientific approach to social media metrics. A null result at t+2 minutes is not a failure; it's the baseline from which growth is measured. The 1 Google Form response (from an earlier pin) remains the sole quantitative engagement signal for the Quiet Rooms project.